GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View (8A Cell 201 Page #)

Figure #

Connector End View

7X Crankshaft Position (CKP) Sensor

Lower rear of engine

20

51

--

24X Crankshaft Position (CKP) Sensor

Right hand side of engine, at end of crankshaft, behind harmonic balancer

21

54

--

20 AMP In-line AUTO Fuse

Right hand side of engine compartment, behind right hand composite headlamp

28

69

--

A/C Compressor Relay

Right hand side of engine compartment behind right hand composite headlamp

28

69

202-28

A/C Refrigerant Pressure Sensor

Right hand side of engine compartment, below accumulator

22

55

--

Camshaft Position (CMP) Sensor

Right hand side of engine, below intake plenum

26

64

--

Convenience Center

Behind right hand Instrument Panel Compartment, below Fuse Block

7

17

Refer to Fuse Block Detail, Convenience Center in Electrical Diagnosis

Cruise Control Module

Behind Instrument Panel, left of steering column

5

13

Refer to Cruise Control in Electrical Diagnosis

Data Link Connector (DLC)

Below Instrument Panel, left of Steering Column

18

43

Refer to Data Link Connector (DLC) in Electrical Diagnosis

Engine Coolant Temperature (ECT) Sensor

Left ahdn side top of engine

--

--

--

Engine Oil level Lamp

Upper left hand side of Instrument Panel

Refer to Instrument Cluster in Electrical Diagnosis

--

--

Engine Oil Level Switch

Center of Engine Oil Pan

--

--

--

Evaporative Canister Purge Solenoid

Top rear of engine, on Intake Manifold

26

64

--

Evaporative Purge Vacuum Switch

Top rear center of engine

26

64

--

Exhaust Gas Recirculation (EGR) Valve

Upper left hand side of engine

21

52

202-26

Fuel Injectors

Top of engine, mounted to fuel rail, below the Upper Intake Manifold

--

--

--

Fuel Pressure Regulator

Mounted on the Fuel Injector Rail, below the Upper Intake Manifold, top, left hand side of engine

--

--

--

Fuel Pump Motor

Mounted inside fuel tank

24

61

--

Fuel Pump Relay

Right hand side of engine compartment, behind right hand composite headlamp

28

69

202-28

Fuse Block

Behind right hand Instrument Panel Compartment

7

18

--

Generator

Top rear rightr hand side of engine

26

64

202-25

Heated Oxygen Sensor 1 (HO2S 1)

Rear of engine, in exhaust manifold

20

51

202-25

Heated Oxygen Sensor 2 (HO2S 2)

In exhaust system, behind Catalytic Converter

24

60

202-25

Idle Air Control Valve (IAC)

Top of engine, front of Throttle Body Assembly

21

52

202-26

Ignition Control Module (ICM)

Top of engine, rear of Intake Manifold

--

--

--

Intake Air Temperature (IAT) Sensor

Left hand front of engine compartment, on air intake dust

21

52

--

Knock Sensor (KS)

Front of einge, above starter

27

66

--

Malfunction Indicator Lamp (MIL)

Left Hand side of Instrument Panel

Refer to Instrument Cluster in Electrical Diagnosis

--

--

Manifold Absolute Pressure (MAP) Sensor

Right hand top of engine

--

--

--

Mass Air Flow (MAF) Sensor

Left hand front of engine compartment, in air cleaner duct

21

52

--

Powertrain Control Module (PCM)

Below right hand side of Instrument Panel, behind Convenience Center

PCM 80-Way Blue Connector C1 Details

PCM 80-Way Clear Connector C2 Details

--

--

Powertrain Control Module Ground

Upper Transaxle Stud

27

66

--

Powertrain Control Module Ground

Lower Transaxle Stud

27

66

--

Positive Crankcase Ventilation Valve

Top, front of engine compartment, mounted in Rocker Arm Cover

--

--

--

Primary Cooling Fan (Puller Fan)

Lower left hand of radiator

27

66

--

Primary Cooling Fan (Puller Fan) Relay

Right hand side of engine compartment, behind right hand composite headlamp

28

69

202-28

Secondary Cooling Fan (Pusher Fan)

Front right hand of radiator

--

--

--

Secondary Cooling Fan (Pusher Fan) Relay

Right hand side of engine compartment, behind right hand composite headlamp

28

69

202-28

Throttle Body

Mounted to the Upper Intake Manifold, top, left hand side of engine

--

--

--

Throttle Position (TP) Sensor

Top of engine, on Throttle Body Assembly

21

52

--

Torque Converter Clutch Connector

Lower left hand side of engine compartment

27

66

202-22

Transaxle Range Switch / Park Neutral Position (PNP) Switch

Rear left hand side of engine compartment, mounted to top of transaxle

22

56

202-17

Vehicle Speed Sensor (VSS) / Transaxle Output Speed Sensor (TOSS)

Right hand of engine, on Transaxle

--

--

--